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EC number: 248-363-6
CAS number: 27247-96-7
Persistence: Standard degradation experiments showed that 2-EHN could
not be considered readily biodegradable. The poor biodegradability of
2-EHN might be the consequence of two factors, first the low occurrence
of micro-organisms able to use it as carbon source, and second its
inhibitory effect on bacterial growth even at low concentration. It is
assessed as 'P'.
Bioaccumulation: A Bioaccumulation Study in Oryzias latipes determined
bioconcentration factors of 1248 and 996. This was supported by a
Catalogic QSAR prediction (log BCF = 3.16). All values are below the
REACH 'B' threshold of 2000 L/kg, and therefore, the substance is
assessed as not bioaccumulative (not B or vB).
Toxicity: The EC10 (growth rate) in Desmodesmus subspicatus was
determined to be 2.22 mg/L, indicating that the 'T' criterion is not met
based on chronic data. Furthermore, the lowest acute value (48-hour EC50
in Daphnia magna) was 0.83 mg/L, which is greater than the screening
criteria threshold of 0.01 mg/L, further demonstrating that the test
substance is not T. With respect to the other classifications that
result in 'T', The substance is not classified for chronic toxicity,
carcinogenicity, mutagenicity or reproduction. Therefore, the 'T'
criterion is not met.
Overall, it is concluded that the substance is not considered as
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